Fixes for bug#ATLINFR-1529

Specifically, fix links on README.md and give doxygen the path to the logo image.


Former-commit-id: e0a00b86b42c938df1337259299f00f0d378f7ef

README.md

@@ -11,7 +11,7 @@ Links
 ------------------------
 
 - The [ATLAS webpage](https://atlas.ch) will tell you all about the ATLAS experiment (for ATLAS members, the collaboration webpage is [here](http://atlas.web.cern.ch/Atlas/Collaboration/) 
-- The [Twiki](https://twiki.cern.ch/twiki/bin/view/AtlasComputing/AtlasComputing) is the main source of documentation, and has many links to sub-domains.
-- The [software documentation](https://atlassoftwaredocs.web.cern.ch) page has some tutorials etc.
-- The git repository is [here](https://gitlab.cern.ch/atlas/aogt9)
-- And the Doxygen code documentation can be found [here](https://dfs.cern.ch/dfs/websites/t/test-git-doxygen2/index.html)
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+- The [Twiki](https://twiki.cern.ch/twiki/bin/view/AtlasComputing/AtlasComputing) is the main source of documentation, and has many links to sub-domains
+- The [software documentation](https://atlassoftwaredocs.web.cern.ch) page has some tutorials etc
+- The git repository is [here](https://gitlab.cern.ch/atlas/athena)
+- And the Doxygen code documentation can be found [here]( http://atlas-sw-doxygen.web.cern.ch/atlas-sw-doxygen)
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